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Just starting out

6912 Views 14 Replies 8 Participants Last post by  Duncan
I have been doing some research for about two months now just trying to get a ground of where to start a new EV and could use some help. I am going to make an EV from scratch. I am expecting this project to take about 3 to 5 years or so, thus I am in no rush at all. I still have tons to learn about a variety of things for this undertaking and I am pretty optimistic about it. I have been thinking about a good place to start, and after much deliberation I have decided to start with a motor and plan on from there. I definitely want to go with an AC motor. My budget that I plan on spending for the whole car is about 50,000, give or take 20,000 if need be for everything that i want in it. So back to starting with the motor I would like something around 250-300kw. Anyone have any suggestions? Again, I am just starting out, thanks for any help!

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With the budget you have and the performance you want, I think your best AC option would be to get a motor and controller from Bob Simpson. His motors are very well built, with liquid cooling and even with cooling of the rotor. So it has a very high continuous power rating (much higher than any DC motor which are very good for peak power but bad for continuous since it is difficult to do liquid cooling). His controllers are made by Rinehart, which for my money is the best AC controller available to DIY. It won't be cheap, but it will be a monster. He has just one that sounds like it is just what you want for 37k. You'll need probably a 30kwh pack to run it. That would put you back another 15k if you bought it today...probably cheaper when you are ready for that part. Another 10k for a donor worthy of these components, and another 5-10k for charger, dc-dc and odds and ends, and you will be pushing the upper limits of your budget. But if you do a good job it would be worth way more.

Interested to see what you have in mind for a donor. Me, I'd see if I could cram it in an Audi TT Quattro...that kind of power would like 4wd. I don't have your budget though :)

You'll get plenty of pressure on here to do it cheaper. You could have similar peak power for 20k less if you went DC. But I say if you have the money, go for the gold.
A link might be nice...
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